Where I am located right now in Albania,you pay 100 USD in local currency here and you get a real vaccination document.Many persons don't like what the government is doing trying to force vaccine on many professions or they will be fired from the work place so people have found a way around it.Corruption here has always been in huge quantities so this is not something new here but already people are buying real vaccination documents.
Plenty of examples here too, in Greece. People were even bribing doctors to not vaccinate them but update their social security number that they've completed the vaccination. There are even instances of medical staff purposely faking vaccinations on patients, who were unaware of the situation. Fortunately, those instances are extremely limited.
It's astonishing to see such measures taken from anti-vaxxers, to avoid it, they recently caught a drug abuser, who would get vaccinated for you, by giving your details (ID, SSN etc.). He had received more than 15 doses of Johnson and more than 12 doses of Pfizer.